Diego García de Herrera y Ayala (Seville, c. 1417 – Fuerteventura, 22 June 1485) was a Castilian nobleman and Consort-Lord of the Canary Islands.
Diego de Herrera sued both the Crown of Castile and the Kingdom of Portugal over his rights to the islands as husband of Inés Peraza, Hernán's heiress.
In 1454 they also managed to get infante Henry the Navigator to abandon the part of La Gomera occupied by his vassals, and in 1468 the Castilian monarch revoked the concession of the conquest of the unsubmissive islands that he had made in favor of several Portuguese nobles in 1464.
The political role of the towers was reinforced by solemn acts of possession, such as the one held in Tenerife, in which nine Menceys kissed the hand of Diego García de Herrera in a pretended recognition of vassalage.
The title of Count of La Gomera, which had been promised to him by the Catholic Monarchs in the aforementioned capitulations, was granted to him by Royal Dispatch issued in his name in 1487, when he had already died.